CN106084148A - A kind of maleic acid class polycarboxylate water-reducer - Google Patents
A kind of maleic acid class polycarboxylate water-reducer Download PDFInfo
- Publication number
- CN106084148A CN106084148A CN201610402113.3A CN201610402113A CN106084148A CN 106084148 A CN106084148 A CN 106084148A CN 201610402113 A CN201610402113 A CN 201610402113A CN 106084148 A CN106084148 A CN 106084148A
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- CN
- China
- Prior art keywords
- parts
- reducer
- acid
- liquid
- polycarboxylate water
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Abstract
The invention discloses a kind of maleic acid class polycarboxylate water-reducer, belong to chemical field.It is made up of following raw material: maleic anhydride 100 120 parts, poly glycol monomethyl ether 9.8 11.8 parts, 10.7 12.9 parts of acrylic acid, hydrogen peroxide (30%) 0.36 0.43 part, 0.14 0.16 parts of L ascorbic acid, pyridine 0.09 0.12 parts, thioglycolic acid 0.41 0.48 parts, chloroform 60 80 parts.The maleic acid class polycarboxylate water-reducer of the offer of the present invention, with low cost, synthetic operation is simple, and adds pendant polar group Molecule amount, improves dispersion retentivity.
Description
Technical field
The present invention relates to chemical field, be specifically related to a kind of maleic acid class polycarboxylate water-reducer.
Background technology
Water reducer is research at present and most popular a kind of concrete admixture, and additive has become concrete except water
The 5th kind of ingredient beyond mud, sand, stone, water.Water reducer belongs to one of additive improving concrete batching system rheological property.
Under the conditions of water reducer is essentially identical at concrete slump and does not affects workability, there is the additional of the effect such as diminishing, slow setting
Agent；Also there are the rheological characteristic increasing mixture or the effect saving cement consumption.The main purpose using water reducer in engineering is
Reduce concrete water amount, reduce the ratio of mud, save single cement consumption, and improve its workability.Polycarboxylate water-reducer is because of it
The carboxyl simultaneously having and unique chain structure of polyoxyethylene groups, and become the hot topic studying use at present.
Summary of the invention
For above-mentioned, it is an object of the invention to provide a kind of modified version high efficiency water reducing agent based on polycarboxylate water-reducer.
The concrete technical scheme that the present invention takes is:
A kind of maleic acid class polycarboxylate water-reducer, is prepared from by following raw material: maleic anhydride 100-120 part,
Poly glycol monomethyl ether 9.8-11.8 part, acrylic acid 10.7-12.9 part, hydrogen peroxide (30%) 0.36-0.43 part, L-AA
0.14-0.16 part, pyridine 0.09-0.12 part, thioglycolic acid 0.41-0.48 part, chloroform 60-80 part.
Present invention also offers the preparation method of a kind of maleic acid class polycarboxylate water-reducer, comprise the following steps:
(1) weigh poly glycol monomethyl ether and maleic anhydride, put in 150ml there-necked flask, put into chloroform conduct
Solvent.Being heated to 60 DEG C and stir, reacting 3 hours, cooling obtains white solid after removing solvent, obtains modified polymeric monomer；
(2) preparation A liquid (a certain amount of acrylic acid and distilled water) and B liquid (a certain amount of thioglycolic acid, L-AA
And distilled water) stand-by.Inserting thermometer on former there-necked flask, stirring to the polymeric monomer that heats up is completely dissolved, and instills hydrogen peroxide also
Stir, be simultaneously added dropwise A liquid and B liquid with constant pressure funnel.It is incubated 1-2 hour after dropping.With 40% after cooling
NaOH solution is neutralized to PH=6.0-7.0.
The maleic acid class polycarboxylate water-reducer that the present invention provides is the most with low cost, and synthetic operation is simple, and adds side
Strand polarity group Molecule amount, improves dispersion retentivity.
Detailed description of the invention
Below presently preferred embodiments of the present invention is described in detail so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that thus protection scope of the present invention is made apparent clear and definite defining.
Embodiment 1
A kind of maleic acid class polycarboxylate water-reducer, is prepared from by following raw material: maleic anhydride 100 parts, poly-second
Glycol monomethyl ether 9.8 parts, 10.7 parts of acrylic acid, hydrogen peroxide (30%) 0.36 part, L-AA 0.14 part, pyridine 0.09 part,
Thioglycolic acid 0.41 part, chloroform 60 parts.
Its concrete manufacturing process comprises the steps of
(1) weigh poly glycol monomethyl ether and maleic anhydride, put in 150ml there-necked flask, put into chloroform conduct
Solvent.Being heated to 60 DEG C and stir, reacting 3 hours, cooling obtains white solid after removing solvent, obtains modified polymeric monomer；
(2) preparation A liquid (a certain amount of acrylic acid and distilled water) and B liquid (a certain amount of thioglycolic acid, L-AA
And distilled water) stand-by.Inserting thermometer on former there-necked flask, stirring to the polymeric monomer that heats up is completely dissolved, and instills hydrogen peroxide also
Stir, be simultaneously added dropwise A liquid and B liquid with constant pressure funnel.It is incubated 1-2 hour after dropping.With 40% after cooling
NaOH solution is neutralized to PH=6.0-7.0.
Embodiment 2
A kind of maleic acid class polycarboxylate water-reducer, is prepared from by following raw material: maleic anhydride 110 parts, poly-second
Glycol monomethyl ether 10.8 parts, 11.8 parts of acrylic acid, hydrogen peroxide (30%) 0.395 part, L-AA 0.15 part, pyridine 0.105
Part, thioglycolic acid 0.445 part, chloroform 70 parts.
Its concrete manufacturing process comprises the steps of
(1) weigh poly glycol monomethyl ether and maleic anhydride, put in 150ml there-necked flask, put into chloroform conduct
Solvent.Being heated to 60 DEG C and stir, reacting 3 hours, cooling obtains white solid after removing solvent, obtains modified polymeric monomer；
(2) preparation A liquid (a certain amount of acrylic acid and distilled water) and B liquid (a certain amount of thioglycolic acid, L-AA
And distilled water) stand-by.Inserting thermometer on former there-necked flask, stirring to the polymeric monomer that heats up is completely dissolved, and instills hydrogen peroxide also
Stir, be simultaneously added dropwise A liquid and B liquid with constant pressure funnel.It is incubated 1-2 hour after dropping.With 40% after cooling
NaOH solution is neutralized to PH=6.0-7.0.
Embodiment 3
A kind of maleic acid class polycarboxylate water-reducer, is prepared from by following raw material: maleic anhydride 120 parts, poly-second
Glycol monomethyl ether 11.8 parts, 12.9 parts of acrylic acid, hydrogen peroxide (30%) 0.43 part, L-AA 0.16 part, pyridine 0.12 part,
Thioglycolic acid 0.48 part, chloroform 80 parts.
Its concrete manufacturing process comprises the steps of
(1) weigh poly glycol monomethyl ether and maleic anhydride, put in 150ml there-necked flask, put into chloroform conduct
Solvent.Being heated to 60 DEG C and stir, reacting 3 hours, cooling obtains white solid after removing solvent, obtains modified polymeric monomer；
(2) preparation A liquid (a certain amount of acrylic acid and distilled water) and B liquid (a certain amount of thioglycolic acid, L-AA
And distilled water) stand-by.Inserting thermometer on former there-necked flask, stirring to the polymeric monomer that heats up is completely dissolved, and instills hydrogen peroxide also
Stir, be simultaneously added dropwise A liquid and B liquid with constant pressure funnel.It is incubated 1-2 hour after dropping.With 40% after cooling
NaOH solution is neutralized to PH=6.0-7.0.
Claims (4)
1. a maleic acid class polycarboxylate water-reducer, it is characterised in that be prepared from by following raw material: maleic anhydride
100-120 part, poly glycol monomethyl ether 9.8-11.8 part, acrylic acid 10.7-12.9 part, hydrogen peroxide (30%) 0.36-0.43 part,
L-AA 0.14-0.16 part, pyridine 0.09-0.12 part, thioglycolic acid 0.41-0.48 part, chloroform 60-80 part.
Maleic acid class polycarboxylate water-reducer the most according to claim 1, it is characterised in that prepared by following raw material
Form: maleic anhydride 105-115 part, poly glycol monomethyl ether 10.4-11.2 part, acrylic acid 11.3-12.3 part, hydrogen peroxide
(30%) 0.37-0.42 part, L-AA 0.145-0.155 part, pyridine 0.10-0.11 part, thioglycolic acid 0.43-0.46
Part, chloroform 65-75 part.
Maleic acid class polycarboxylate water-reducer the most according to claim 1, it is characterised in that prepared by following raw material
Form: maleic anhydride 110 parts, poly glycol monomethyl ether 10.8 parts, 11.8 parts of acrylic acid, hydrogen peroxide (30%) 0.395 part, L-are anti-
Bad hematic acid 0.15 part, pyridine 0.105 part, thioglycolic acid 0.445 part, chloroform 70 parts.
4. the preparation method of a maleic acid class polycarboxylate water-reducer, it is characterised in that comprise the following steps:
(1) weigh poly glycol monomethyl ether and maleic anhydride, put in 150ml there-necked flask, put into chloroform as solvent,
Instill pyridine as catalyst.Being heated to 60 DEG C and stir, reacting 3 hours, cooling obtains white solid after removing solvent, obtains modified
Polymeric monomer；
(2) preparation A liquid (a certain amount of acrylic acid and distilled water) and B liquid (a certain amount of thioglycolic acid, L-AA and steaming
Distilled water) stand-by.Inserting thermometer on former there-necked flask, stirring to the polymeric monomer that heats up is completely dissolved, and instills hydrogen peroxide and stirs
Uniformly, it is simultaneously added dropwise A liquid and B liquid with constant pressure funnel.It is incubated 1-2 hour after dropping.Use 40%NaOH molten after cooling
Liquid is neutralized to PH=6.0-7.0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610402113.3A CN106084148A (en) | 2016-06-08 | 2016-06-08 | A kind of maleic acid class polycarboxylate water-reducer |
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| CN201610402113.3A CN106084148A (en) | 2016-06-08 | 2016-06-08 | A kind of maleic acid class polycarboxylate water-reducer |
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| CN201610402113.3A Pending CN106084148A (en) | 2016-06-08 | 2016-06-08 | A kind of maleic acid class polycarboxylate water-reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821630A (en) * | 2018-07-11 | 2018-11-16 | 长沙加美乐素化工有限公司 | A kind of synthesis technology of low temperature polycarboxylate water-reducer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775133A (en) * | 2010-01-26 | 2010-07-14 | 辽宁奥克化学股份有限公司 | Polyoxyethylene ether monomer, synthesis method thereof and application thereof in synthesis of water reducing agent |
| CN101812163A (en) * | 2010-04-19 | 2010-08-25 | 河北铁园科技发展有限公司 | Method for preparing polycarboxylic acid retarding water reducer |
| CN103183794A (en) * | 2011-12-27 | 2013-07-03 | 山西黄腾化工有限公司 | Method for preparing polycarboxylic acid type water reducer by solid acid esterification |
| CN103508696A (en) * | 2013-09-22 | 2014-01-15 | 四川同舟化工科技有限公司 | Mud-resistant polycarboxylic acid water reducer and preparation method thereof |
-
2016
- 2016-06-08 CN CN201610402113.3A patent/CN106084148A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775133A (en) * | 2010-01-26 | 2010-07-14 | 辽宁奥克化学股份有限公司 | Polyoxyethylene ether monomer, synthesis method thereof and application thereof in synthesis of water reducing agent |
| CN101812163A (en) * | 2010-04-19 | 2010-08-25 | 河北铁园科技发展有限公司 | Method for preparing polycarboxylic acid retarding water reducer |
| CN103183794A (en) * | 2011-12-27 | 2013-07-03 | 山西黄腾化工有限公司 | Method for preparing polycarboxylic acid type water reducer by solid acid esterification |
| CN103508696A (en) * | 2013-09-22 | 2014-01-15 | 四川同舟化工科技有限公司 | Mud-resistant polycarboxylic acid water reducer and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821630A (en) * | 2018-07-11 | 2018-11-16 | 长沙加美乐素化工有限公司 | A kind of synthesis technology of low temperature polycarboxylate water-reducer |
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Application publication date: 20161109 |
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